fix: slice while fully loaded into memory

configs_template/config_template.json

@@ -21,7 +21,8 @@
     "use_sr": true,
     "max_speclen": 512,
     "port": "8001",
-    "keep_ckpts": 3
+    "keep_ckpts": 3,
+    "all_in_mem": false
   },
   "data": {
     "training_files": "filelists/train.txt",

data_utils.py

@@ -79,6 +79,10 @@ def get_audio(self, filename):
         assert abs(audio_norm.shape[1]-lmin * self.hop_length) < 3 * self.hop_length
         spec, c, f0, uv = spec[:, :lmin], c[:, :lmin], f0[:lmin], uv[:lmin]
         audio_norm = audio_norm[:, :lmin * self.hop_length]
+
+        return c, f0, spec, audio_norm, spk, uv
+
+    def random_slice(self, c, f0, spec, audio_norm, spk, uv):
         # if spec.shape[1] < 30:
         #     print("skip too short audio:", filename)
         #     return None
@@ -92,9 +96,9 @@ def get_audio(self, filename):
 
     def __getitem__(self, index):
         if self.all_in_mem:
-            return self.cache[index]
+            return self.random_slice(*self.cache[index])
         else:
-            return self.get_audio(self.audiopaths[index][0])
+            return self.random_slice(self.get_audio(self.audiopaths[index][0]))
 
     def __len__(self):
         return len(self.audiopaths)

train.py

@@ -67,9 +67,11 @@ def run(rank, n_gpus, hps):
     torch.manual_seed(hps.train.seed)
     torch.cuda.set_device(rank)
     collate_fn = TextAudioCollate()
-    all_in_mem = False # If you have enough memory, turn on this option to avoid disk IO and speed up training.
+    all_in_mem = hps.train.all_in_mem   # If you have enough memory, turn on this option to avoid disk IO and speed up training.
     train_dataset = TextAudioSpeakerLoader(hps.data.training_files, hps, all_in_mem=all_in_mem)
     num_workers = 5 if multiprocessing.cpu_count() > 4 else multiprocessing.cpu_count()
+    if all_in_mem:
+        num_workers = 0
     train_loader = DataLoader(train_dataset, num_workers=num_workers, shuffle=False, pin_memory=True,
                               batch_size=hps.train.batch_size, collate_fn=collate_fn)
     if rank == 0: